Determination of fracture toughness of underfill/chip interface with digital image speckle correlation technique

2004 ◽  
Author(s):  
Zhang Yanlie ◽  
Shi Xunqing ◽  
W. Zhou
Keyword(s):  
Fracture Toughness ◽  
Digital Image ◽  
Correlation Technique ◽  
Speckle Correlation

ATOMIC FORCE MICROSCOPE (AFM)-BASED DIGITAL IMAGE SPECKLE CORRELATION (DiSC) TECHNIQUE FOR THE MEASUREMENT OF DEFORMATION IN NANOSCALE

2004 ◽  
Vol 03 (06) ◽  
pp. 789-795
Author(s):  
X. Q. SHI ◽  
J. P. PICKERING ◽  
C. K. WONG
Keyword(s):  
Digital Image ◽  
Experimental Measurement ◽  
Plane Deformation ◽  
Measurement Techniques ◽  
Correlation Method ◽  
Electronic Packages ◽  
Wafer Level ◽  
Speckle Correlation ◽  
Atomic Force

Experimental measurement techniques for the determination of stress levels and distributions will be one of most important keys for the optimization of the design of the next generation electronic packages, e.g., nano-wafer-level packages. However, current experimental photo-mechanics techniques are often found to be insufficiently sensitive but also lacking in sufficient resolution to determine stress distributions of nanoscale electronic packages. In this study, the digital image speckle correlation method was combined with the atomic force microscopy (AFM) to develop a new experimental measurement technique, so-called nanodigital image speckle correlation (Nano-DiSC), for the determination of deformation on the nanometer scale. With the developed theoretical model, computational algorithms and nanospeckle pattern preparation method, the Nano-DiSC methodology was found to be able to measure the in-plane deformation on the sub-10 nm scale.

scholarly journals Determination of mode I dynamic fracture toughness of IM7-8552 composites by digital image correlation and machine learning

2019 ◽  
Vol 210 ◽  
pp. 707-714 ◽  
Author(s):  
Rafael A. Cidade ◽  
Daniel S.V. Castro ◽  
Enrique M. Castrodeza ◽  
Peter Kuhn ◽  
Giuseppe Catalanotti ◽  
...  
Keyword(s):  
Machine Learning ◽  
Fracture Toughness ◽  
Digital Image Correlation ◽  
Dynamic Fracture ◽  
Digital Image ◽  
Dynamic Fracture Toughness ◽  
Image Correlation ◽  
Mode I

Determination of the Local Strains Near Stress Concentrators by the Digital Image Correlation Technique

2015 ◽  
Vol 50 (4) ◽  
pp. 488-495 ◽  
Author(s):  
Ya. L. Ivanyts’kyi ◽  
Yu. V. Mol’kov ◽  
P. S. Kun’ ◽  
T. M. Lenkovs’kyi ◽  
M. Wójtowicz
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Image Correlation ◽  
Correlation Technique ◽  
Digital Image Correlation Technique ◽  
Local Strains ◽  
Stress Concentrators
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